Muscle Tear in Dogs
Muscle Rupture in Dogs
A normal muscle can be stretched, pinched, or injured directly, resulting in fiber disruption, weakening, and immediate or delayed separation of the uninjured portions. Normal activity may cause muscle disruption. Alternatively, the muscle structure may be compromised by systemic or iatrogenic (physician-caused) conditions. The rupture may be complete or incomplete, and may be in the middle of the muscle or at the muscle-tendon junction. The acute (sudden and severe) stage is characterized by a typical inflammatory reaction that becomes chronic over time, with cross-linking, and adhesion development over time. Frequently, the acute phase is overlooked, as the signs may be temporary and respond well to rest. The chronic effects are often progressive and unresponsive to support therapies.
The muscles of the limbs, and the chewing muscles are the primary structures affected. Traumatic injury is indiscriminate, though certain activities may predispose because of exposure. The ruptures that are apparently unrelated to trauma seem to affect middle-aged to older working dogs, with no reported gender predilection.
Symptoms and Types
Your veterinarian will conduct a thorough physical examination, looking for evidence of neurologic dysfunction and tendon rupture. Diagnostic imaging will include X-rays to look for evidence of bone fragment defects and translocations, and ultrasound to look for swelling and disorientation of the normal muscle fiber at the site of injury in acute cases. Scar tissue and contracted areas of fibrous tissue can be seen in the muscle in chronic cases. Magnetic resonance imaging (MRI) can be used to look for edema and hemorrhage, and to achieve localization of the problem that will help to identify the type of problem.
Your doctor will also test your dog’s joints for evidence of joint instability or malalignment. Measurable differences between normal and abnormal sides may be useful in documenting the affected muscle site. Another thing your doctor can do is conduct a biopsy of the affected muscle to detect the presence of fibrous tissue and loss of muscle cells. Differentiating atrophy due to disuse from neurologic atrophy, and from injury-induced scarring, may be impossible without corroborating evidence.
Any type of pain or tenderness or lack of soundness in the feet or legs of animals
Anything that is created through a method of treatment
The area found between the muscles and the endings of the nerves
The prediction of a disease’s outcome in advance
Something that is related to the whole body and not just one particular part or organ
Extreme loss of blood
The study of the various causes of disease
The wasting away of certain tissues; a medical condition that occurs when tissues fail to grow.
Fibers that bond items together that would not normally be combined.
The process of removing tissue to examine it, usually for medical reasons.
The collection of fluid in the tissue
Term used to imply that a situation or condition is more severe than usual; also used to refer to a disease having run a short course or come on suddenly.
The term used to describe the movement of an animal
Torn Knee Ligament in Dogs
The stifle joint is the joint between the thigh bone (the femur) and the two lower...
Bone Cancer (Osteosarcoma) in Dogs
Osteosarcoma refers to the most common bone tumor found in dogs. Bone cancer can...
Latest In Dog Nutrition
Five Life-Lengthening Health Tips for Your ...
Anyone who has ever had a dog or cat wishes just one thing — that he or she has a...
What Are Lean Proteins and How They Can Help ...
Protein is an important component in your pet's food, but not all proteins are the...